As part of our image quality testing for the Sony RX100, we've shot our resolution chart.

If you view our crops of the resolution chart's central section at 100% (or actual pixels), you will see that, for example, at ISO 100, the Sony RX100 is capable of resolving up to around 24 (line widths per picture height x100) in its highest quality JPEG files.

It's all about the sensor, and bigger is definitely better. Around four times larger than the sensor in many point-and-shoot cameras, the brand-new 1.0-type Exmor CMOS sensor with 20.2 effective megapixels captures detail packed images with low noise.